Sewing-machine for lasting boots or shoes



(No Model.) 6 Sheets-Sheet 1.

J. E. JACKSON. SEWING MACHINE FOR LASTING BOOTS OR SHOES.

No. 539,481. Patented May 21, 1895.

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J. E. JACKSON. SEWING MAOHINE FOR LASTING BOOTS 0R SHOES.

No. 539,481. Patented May 21, "1895.

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No. 539,481. Patented May 21,, 1-895.

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. J. E. JACKSON! SEWING MACHINE FOR LASTING BOOTS OR SHOES.

No. 539,481. Patented May 21, 1,895;

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J. E. JACKSON. I SEWING MACHINE FOR LASTING BOOTS OR SHOES. No. 539,481.Patented May 21, I895.

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(No Model.) 6 Sheets-Sheet 6. J. E. JACKSON. SEWING MACHINE FOR LASTINGBOOTS 0R SHOES.

No. 539,481. Patented May 21, 1895.

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JAMES E. JACKSON, OF LYNN, MASSACHUSETTS.

SEWING-MACHINE FORLASTING BOOTS OR SHOES.

SPECIFICATION forming part of Letters Patent No. 539,481, dated May 21,1895.

Application filed September 13, 1894:. Serial No. 522,934- (No model.) iI To aZZ whom it may concern: I

Be it known that 1, JAMES E. JACKSON, of Lynn, in the county of Essexand State of Massachusetts, have invented a new and useful Improvementin Sewing-Machines for Lasting Boots or Shoes, which will, in connectionwith the accompanying drawings, be hereinafter fully described, andspecifically defined in the appended claims.

In said drawings, Figure 1 is a top plan view of my improvedlasting-machine. Fig. 2 is a front elevation of the machine shown inFig. 1. Fig. 3 is a side elevation taken at the right of Figs. 1 and 2;Fig. 4 is a vertical section taken on line 2', Fig. 2, and viewed'asfrom the left in Figs. 1 and 2. Fig. 5 is also a vertical section, buttaken on line w w, Fig. 1. Fig. 6 is a perspective view showing theclamping pinchers and the cutting-blade attached to the upper jawof saidpinchers. Fig. 7 is a top plan view of shaft g and certain attachedparts. Fig. 8 is a perspective view of a shoe as being lasted by mymachine, certain parts of the machine being also shown. Fig. 9 is atransverse section of the shoe near the toe and showing certain parts ofthe machine.

The object of my invention is to last shoes rapidly and well bystitching the upper to the sole; and I accomplish said result by meansof a machine that takes the shoe when drawn upon the last and that isself-feeding the distance of a stitch just before each stitch is set,that is provided with a pair of pinchers that hold the border of theupper while being lasted, the shoe being moved laterally stitch bystitch, thereby feeding or moving it after ea'ch stitch is set, and thathas a cutter attached to the upper jaw of the pinchers to cut or shinglethe upper at each stitch so that it will lie level upon the sole; alsoin a stitching mechanism provided with devices for inserting a stitch ateach movement of the shoe, which stitching mechanism consists of an awl,a needle, a cast-off and a looper so constructed and arranged as to sewthe upper to the sole, as will be next herein 7 described and thenpointed out in the claims.

Referring again to said drawings, A is the frame of the machine, whichmay be set upon a table or bench or it may have a special base or legsprovided for it.

B is a gooseneck or arm that is secured to and extends above frame A andsupports the upper portions of the machine.

E is a pulley secured upon shaft F that is .mounted in bearings of frameA, and by a belt acting on said pulley the several parts of the machineare actuated.

O is a bent lever or arm mounted to vibrate on shaft a and is actuatedby cam G secured on shaft F, a trundle I) attached to the lower end ofsaid lever being arranged to move in the cam groove 0, Fig. 5. The upperfront end of lever O has con nected with it the curved piece at which issupported by pin e that plays in slotf in said piece d,- the lowerportion of which merely serves to hold the same in proper balance, as itis moved up and down by the vibrations of lever O. A rod or shaft g issupported in gooseneck B at the left as shown in Figs. 1, 2, and 5,while its opposite end is supported by the partj that depends from head11 of angle h of said gooseneck B.

Mounted on shaftg is the hub is from which extends rearward a short armZ to which bar d is pivoted by pin m, as is shown in Figs. 5

and 7. Upon bar d is a cam n that bears against arm Z and relieves pinon of a portion of the strain that would otherwise be exerted upon it.

Extending to the right from arm Z is the small arm t that carries thecast-off guide 19 that is formed as an arc of a circle and is in partguided by guide 5, shown in Fig. 2, through which it moves. The cast-offq is arranged at the side of said guide p and is held in relationthereto by clasps 3, 4, that inclose guide t and are secured to the castoff, while an abutment 2 secured to said guide serves as the means ofmoving the castoff in alternate directions as said abutment isbrought'in contact with said clasps. At the front of the machine saidcast-01f is frictioned by a screw 6, that presses it between the parts 7of leather placed between the guiding loop 5 and main part. 8, to beherein after described. The needle 10 is also secured in said arm 25 andis also formed as an arc of a circle and is actuated by the oscillationof hub is on its shaft g.

Arm D is actuated by crank pin 9 carried by shaft F, which acts in slot10, formed in the lower bent end of said lever, which lever is pivotedand vibrates on shaft Ct as shown in Fig. 3. Said arm D actuates pitman11, that at its lower end is pivoted to awl carrier 12, that is mountedand reeiprocates on shaft g, and it carries the awl 13. Projecting downfrom arm D is a short stud 14, that contacts with arm secured on rockshaft 16, which at its front end carries the looper 18; said arm 1 Ltending to move the looper outward, while the helical spring 17, mountedon shaft 16, returns it to place.

A presser foot 19 is arranged in head 'i of gooseneck B to enter thechannel already formed in the sole and to hold the same open to theaction of the sewing mechanism a cam 20 being arranged to raise saidfoot when a shoe is to be placed in position for lasting, and a helicalspring 21 being arranged to depress said presser foot when released fromthe cam.

For the purpose of holding the shoe in proper position for the action ofthe stitching mechanism, and at the same time to cause it to be fedforward stitch by stitelnlarrange a pair of pinchers the lower jaw ofwhich is shown at 26 and the upper jaw at 27, the two jaws being pivotedat 28; a rod 29 being pivoted to the rear end of jaw 26, while its lowerend is pivoted at 30 to lever 31 that at its front end is pivoted at 32to frame A while its rear end carries a trundle 33 that is actuated byearn 34; a coiled spring35 arranged on rod 29 between said jaws servingto open the pinchers when permitted by the action of said cam 34, saidpinchers being formed to cross each other in the well known manner ofpinchers, shears, and like implements.

To feed the shoe forward I arrange an arm 25 thatextends downward fromthe front end of leverD and which is bifurcated at its lower part asshown at 22, 22, which parts are wedge shaped so as to act against saidhub 23, and they pass on opposite sides of shaft 9 and at the right ofhub 23 of arm 8, as viewed in Fig. 2, said hub being loose on shaft gwhile its arm 8 (that supports the cast-off support 19 and cast-off q)is slotted at its upperend and is supported by screw 2a in the end oflever D, so that said arm 8 can move laterally with hub 23, while saidarm 25 is descending, so that at each depression of lever D its arm 25will force hub 23 and hub 7a to the left, thereby, through the contactof needle to with the shoe, causing the latter to be fed to the left,the parts being so timed that when such feeding takes place the pinchersare being held open and the stitching devices being returned to positionby the action of spring 40.

The shoe to be lasted may be held in the hands of the operator or ifpreferred it can be mounted upon a jack, and the edge of the upper isplaced in the pinchers which for that purpose are opened by the actionof a foot treadle (not shown) acting through rod 36; which when releasedis raised by spring 39; a cutting blade 37 being secured to jaw 27, inthe slot 38, so that at each closing of said jaws after the shoe hasbeen fed forward, the edge of the upper will be out to allow its lyingflat upon the sole, and while the shoe is held by said pinchers the awlpunctures the sole and upper ready for the entrance of the needle, thetaking of the stitch and the feeding forward of the shoe.

In Fig. 8, T, represents the insole secured to the last V. Shown in Fig.9. The upper of the shoe is shown at U, and it is held upon the last andinsole by the lasting tacks S.

The upper is seized and held by the pinchers as shown, they beingmanipulated as described. The stitching bywhich the upper is secured tothe insole commences near the heel on the side as shown, the shoe beingmoved the distance of a stitch at each movement of the pinchers shown at26, 27, they being opened and closed for that purpose as explained. Theawl 18 passes under the welt t, which may be stitched to the insole orit may be out and raised thereon, and needle 13 cooperates with the awlin setting the stitch, and as each stitch is taken a cut in the edge ofthe upper is made by knife 37, secured to the pinchers.

Having thus described my invention, what I claim as new is 1. Incombination with the stitching mechanism of a shoe lasting machine, apair of pinchers formed with a slot through the jaws, a knife arrangedin said slot and attached to one of said jaws, a cam actuated mechanismto open said jaws for the purpose of allowing the shoe to be fed, and atreadle mechanism arranged for opening said jaws to release the shoetherefrom, substantially as specified.

2. In an organized lasting machine the combination of gooseneck Bmounted on frame A, the pivoted levers C, D, the shaftg mounted in saidgooseneck, thehub 70 carrying the needie, the cast-elf and cast-offguide, all actuated by said lever C, and the awl connected to andactuated by lever D, connections between said lever and looper carryingrock shaft, whereby the looper is actuated, and a cam'shaped arm on saidlever D for moving laterally the needle carrying hub 7.: to feed theshoe forward, substantially as specified.

JAMES E. JACKSON.

Witnesses:

THOMAS W. PORTER, L. W. How s.

